tools/null_state_gen: Add more debug output

Be more verbose about the state size we generate.

Signed-off-by: Mika Kuoppala <mika.kuoppala@intel.com>

1 files changed, 28 insertions, 8 deletions

diff --git a/tools/null_state_gen/intel_null_state_gen.c b/tools/null_state_gen/intel_null_state_gen.c
index c72796b1..353556ab 100644
--- a/tools/null_state_gen/intel_null_state_gen.c
+++ b/tools/null_state_gen/intel_null_state_gen.c
@@ -32,8 +32,6 @@
 
 #include "intel_batchbuffer.h"
 
-#define STATE_ALIGN 64
-
 extern int gen6_setup_null_render_state(struct intel_batchbuffer *batch);
 extern int gen7_setup_null_render_state(struct intel_batchbuffer *batch);
 extern int gen8_setup_null_render_state(struct intel_batchbuffer *batch);
@@ -47,36 +45,52 @@ static void print_usage(char *s)
 	       s);
 }
 
+/* Creates the intel_renderstate_genX.c file for the particular
+ * GEN product
+ */
 static int print_state(int gen, struct intel_batchbuffer *batch)
 {
 	int i;
+	unsigned long cmds;
+
+	fprintf(stderr, "Generating for gen%d\n", gen);
 
 	printf("#include \"intel_renderstate.h\"\n\n");
 
+	/* Relocation offsets.  These are byte offsets in the golden context
+	 * batch buffer where the BB graphics address will be added to
+	 * the indirect state offset already stored in those locations.  The
+	 * resulting value will inform the GPU where the indirect states are.
+	 */
 	printf("static const u32 gen%d_null_state_relocs[] = {\n", gen);
 	for (i = 0; i < batch->cmds->num_items; i++) {
 		if (intel_batch_is_reloc(batch, i))
 			printf("\t0x%08x,\n", i * 4);
 	}
-	printf("\t%d,\n", -1);
-	printf("};\n\n");
+	printf("\t-1,\n};\n\n");
 
+	/* GPU commands to execute to set up the RCS golden state.  This
+	 * state will become the default config.
+	 */
 	printf("static const u32 gen%d_null_state_batch[] = {\n", gen);
 	for (i = 0; i < intel_batch_num_cmds(batch); i++) {
+		const int offset = i * 4;
 		const struct bb_item *cmd = intel_batch_cmd_get(batch, i);
 		printf("\t0x%08x,", cmd->data);
 
 		if (debug)
-			printf("\t /* 0x%08x %s '%s' */", i * 4,
-			       intel_batch_type_as_str(cmd), cmd->str);
+			printf("\t /* 0x%08x %s '%s' */", offset,
+				intel_batch_type_as_str(cmd), cmd->str);
 
-		if (i * 4 == batch->cmds_end_offset)
+		if (offset == batch->cmds_end_offset) {
+			cmds = i + 1;
 			printf("\t /* cmds end */");
+		}
 
 		if (intel_batch_is_reloc(batch, i))
 			printf("\t /* reloc */");
 
-		if (i * 4 == batch->state_start_offset)
+		if (offset == batch->state_start_offset)
 			printf("\t /* state start */");
 
 		if (i == intel_batch_num_cmds(batch) - 1)
@@ -87,9 +101,15 @@ static int print_state(int gen, struct intel_batchbuffer *batch)
 
 	printf("};\n\nRO_RENDERSTATE(%d);\n", gen);
 
+	fprintf(stderr, "Commands %lu (%lu bytes)\n", cmds, cmds * 4);
+	fprintf(stderr, "State    %lu (%lu bytes)\n", batch->state->num_items, batch->state->num_items * 4);
+	fprintf(stderr, "Total    %lu (%lu bytes)\n", batch->cmds->num_items, batch->cmds->num_items * 4);
+	fprintf(stderr, "\n");
+
 	return 0;
 }
 
+/* Selects generator function for the given product and executes it. */
 static int do_generate(int gen)
 {
 	struct intel_batchbuffer *batch;